Home / 860,837.60-1,291,256.40-822,130.40

Finding the Fourth Proportional to 860,837.60, 1,291,256.40 and 822,130.40

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Solution

The fourth proportional to 860,837.60, 1,291,256.40 and 822,130.40 is: 1,233,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,837.60 : 1,291,256.40 = 822,130.40 : x
  2. Step 2: Convert to fraction form
    860,837.60/1,291,256.40 = 822,130.40/x
  3. Step 3: Cross multiply
    860,837.60x = 1,291,256.40 × 822,130.40
  4. Step 4: Simplify right side
    860,837.60x = 1,061,581,140,634.56
  5. Step 5: Solve for x
    x = 1,061,581,140,634.56/860,837.60
  6. Step 6: Final answer
    x = 1,233,195.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.